Deep well pump



12, 1939- 1 'r.. s. HARRIS 2,183,351

DEEP WELL PUMP med Aug. 4, 193a Patented Dec. 1 2, 1939 UNITED" STATES PATENT OFFICE DEEP WELL PUMP Thaddeus S. Harris, Waverly, Ill. Application August 4, 1938, Serial No. 223,005

. 8 Claims.

The object of this invention is to provide a deep well pump in which the. pump head need not be set directly over the well, and a pump in which the usual cylinder in the-well, and]the pump rod to operate it, are eliminated. 'These two features constitute the chief advantages of the construction here shown and described. a

The main operating principle of this pump is that of using a jet .of water, at comparatively high pressure, delivered at the small endof a Venturi tube, which jet draws in water around the double acting force pump, which may be operated by the lever. 2. The discharge chamber 3 has two pipes 4 and 4 connected thereto. Pipe 4 extends to the well 5, Where it is connected to the well units as herein described. Pipe 4' is connected to the Venturi tube unit 8, which unit is connected .at'its upper end, by'pipe 9, to storage tank II).

A check valve II is connected into thepipe 9.

The Venturi tube unit 8 has an adjustable needle valve I2 for controlling the flow through the jet I2.

From the intake port I of. the pump, the suction pipe passage I3, I3 extends to the well 5, where it is connected to the top of Venturi tube 6. Connected into this suction passage is a diaphragm chamber I4 with the diaphragm I5. The lower side of diaphragm I5 is subject to atmospheric pressure. A valve rod I6 is fixed to the center of diaphragm I5 .and carries valve I'I which controls port I8. Port I8 is connected by a passage I8 to the lower portion of Venturi tube 8 a check valve I9 beingconnected into the passage. The valve I1 is by-passed by the small air port I1. A spring I6, operates to hold valve I! open, when pump is not operating.

An automatic priming valve is comprised of the diaphragm chamber 20 with diaphragm 2|, the left side of which is open to atmospheric 2&- sure. Diaphragm 2| carries valve rod 22, on which is mounted a valve 23, controlling port 24. Port 24 is connected by pipe 25 to tank I0. A SIJllIl'; 2| holds valve 23 closed, normally. Diaphragm chamber 20 is connected by pipe 26 to a port 26 in the side of pipe passage I3, I3.

The jet 6' in Venturi tube 6 is connected by pipe 21 to pipe 4. An air port 28, in the base of Venturi tube 6, is connected to the top portion of the well by a pipe 29, a check valve 3|] being con nected into thispassage. A hand valve 3| controls pipe 29.

The top of Venturi tube 1 is connected to the bottom of Venturi tube 6 by pipe I. The jet 32 is connected by a pipe 32' to pipe 4. There is a passage 33 from unit 'I to the water of the well, a check valve 34 being connected into the passage.

When pump I is operated it develops a high degree of vacuum in pipe I3, I3, causing valve I I to close, If the water level in the Well should be lower than about thirty feet below the pump head, then no water can be lifted by mere suction. But the high degree of vacuum causes valve 23 to open so that water from tank I0 may flow. through pipes 25 and 26 to pipe I3. The pump then builds up pressure in the discharge chamber, 3, so that jets 6', 32 start operating. Water is then lifted from the well through pipe I3, in such quantities that the partial vacuum becomes greatly reduced in pipe I3 so that valve 23 closes. In the meantime water is also being discharged through jet I2, passing to tank I0, valve I9 remaining closed. Whenever the partial vacuum in pipe I3, I3 falls to only about five pounds below atmospheric pressure the valve I is caused to open by spring I6 so that water is drawn into the base of Venturi tube I 2, directly from pipe I3, without having passed through the pump. The amount of water discharged to the tank then becomes increased because of higher level of the water in the Well. Also the operation of valve'. I1 insures that at very low water levels there will be a full flow of water to the pump, due to valve closing When high degrees of vacuum are produced in pipe l3.

If hand valve 3| is opened, than small quantities of air are drawn into the lower portion of Venturi tube 6, filling the column of water with air bubbles, thereby rendering it lighter so that water can be lifted from greater depths. This air collects in diaphragm chamber I4 and passes through air port I 1' directly to the tank I 0, andso does not interfere with the operation of the pump.

In the operation of jet I2, the needle valve I2,

besides controlling the amount of flow, also gives the flow a divergent character, which greatly assists in creating asuction force at the small end of the Venturi tube.

I claim as new:

1. In a deep well. pump unit, the combination of a suction type force pump, a pressure reducing jet connected into the discharge pipe therefrom, said jet being disposed at the small end of a Venturi tube, a suction passage from said pump, ex-

tending to a well, a boosting unit in the well, connected to said suction passage, said boosting unit comprising a Venturi tube with jet at its lower end, said jet being connected by a closed passage to the discharge chamber from said pump, a bypass passage from said suction passage to the small end of said Venturi tube which is connected into the discharge passage, a check valve in said by-pass passage and also an automatic valve assembly in said passage, said automatic valve assembly comprising a diaphragm chamber, a diaphragm across said chamber, said diaphragm being operably connected to said valve, one side of said diaphragm being exposed to atmospheric pressure while the other side is exposed to the pressure within the suction passage and a spring disposed to hold said automatic valve open, normally.

2. In the combination of a pump, storage tank and jet booster unit means for automatically repriming said pump, said means comprising the combination of a suction type force pump, a storage tank connected to the discharge passage from said pump, a suction passage extending from said pump to a supply reservoir, a diaphragm chamber, a diaphragm across said chamber, one side or said diaphragm chamber being closed and connected to said suction passage by a closed pipe, a port in this side of said chamber, said port being connected to said tank by a closed passage, a valve in said port, said valve being operably connected to said diaphragm and a spring disposed to hold said valve closed, normally.

3. In a deep well pumping plant, the combination of a suction type pump, a supply reservoir, a discharge passage from said pump, a pressure reducing valve in said discharge passage, a suction supply passage from said pump to said supply reservoir, a jet booster unit in said supply passage, a jet inlet to said jet booster unit, a passage from said jet inlet of said booster unit to the discharge passage from said pump and a by-pass passage from said supply passage to said pressure reducing valve.

4'. In a deep well pumping unit, the combination of a suction type pump and a pressure reducing valve connected into the discharge passage from said pump, said valve comprising an intake chamber, said chamber being connected to the discharge passage from said pump, a discharge port from said chamber, said port being disposed to'discharge into the small end of a Venturi tube, said port having disposed in it a conical shaped needle type valve, a second intake chamber, said chamber being disposed adjacent to said first chamber and around said discharge port and needle valve and a port from said second intake chamber, said port being connected by a closed passage to the intake supply passage to said pump.

5. In a deep well pumping plant the combina tion of a suction type pump, a discharge passage from said pump, an intake supply passage to said pump from a source of supply, a jet booster unit in said supply passage, a passage from said jet unit to said discharge passage, an air port into said booster jet unit, a passage from said air port to the top of the well and a control valve in said passage.

6. In a deep well pumping plant, a suction type force pump, a storage tank, a discharge passage from said pump to said tank, a pressure reducing valve connectedinto said discharge passage, a suction passage from said pump, a booster unit connected into said suction passage, said boosting unit comprising a cone shaped tube, the large end of said tube being connected to said passage, a jet opening into the small end of said tube, said l'et being connected by a closed passage to the discharge chamber of said pump, a passage connecting said small end of tube to the water of a well, a valve in said passage, a by-pass passage from said storage tank to the intake chamber of said pump, an automatically controlled valve in said by-pass passage, a diaphragm chamber, a diaphragm across said chamber, said diaphragm being operably connected to said valve, one side of said diaphragm being subject to a pressure which exceeds the normal operating pressure within the passage, and a spring disposed against 'the opposite side of said diaphragm.

7. In a deep well pumping plant the combination of a suction type force pump, a storage tank,

a discharge passage from said pump to said tank,

a pressure reducing valve connected into said passage, a suction passage extending from said pump to the water of a well, a check valve in said passage, a booster unit, said unit comprising a cone shaped tube connected into said suction passage with its large end connected to said pump by said suction passage, a jet disposed to discharge into the small end of said tube, said jet being connected by a closed passage to the discharge chamber of said pump, a by-pass passage from the intake passage of said pump to said storage tank, an automatically controlled valve in said by-pass passage, a yieldable section in the wall of said passage, said section being operably connected to said valve, the outer side of said section of wall being subject to a pressure which is greater than the normal operating pressure within the passage and a spring disposed against the inner side of said section of wall.

8. In a deep well pumping plant, the combination of a suction type force pump, a storage tank, a discharge passage from said pump to said tank, a pressure reducing valve connected into said passage, a suction passage extending from said pump to the water of a well, a booster unit, said booster unit comprising a cone shaped tube connected into said suction passage with its large end connected to said pump, a jet disposed to discharge into the small end of said tube, said jet being connected by a closed passage to the discharge chamber of said pump, a by-pass passage from the intake passage of said pump to said storage tank, an automatically controlled valve connected into said by-pass passage, a yieldable section in the wall of said passage, said yieldable section being operably connected to said valve, the outer side of said yieldable wall section being subject to a pressure which is materially different from the normal operating pressure within that section of the by-pass passage which is between said valve and said pump intake passage, and a spring disposed to move said wall section in cooperation with its pressure differentials.

' THADDEUS S. HARRIS. 

